Ariz. Admin. Code § 4-30-121
If any information concerning a possible violation of the Act or any of these rules is received or obtained by the Board or Board staff, an investigation shall be conducted prior to the initiation of formal proceedings. Investigative reports, professional assessments, enforcement advisory committee recommendations, and other documents and materials relating to an investigation shall remain confidential until the matter is closed, until the issuance of a hearing notice under A.R.S. § 32-128, or until the matter is settled by consent order; however, the Board shall inform the respondent that an investigation is being conducted and explain the general nature of the investigation. The respondent shall have access to a copy of the complaint and any assessment or EAC reports drafted during the investigation. The public may obtain information that an investigation is being conducted and an explanation of the general nature of the investigation. The Board may refer investigative information to other public agencies as appropriate under the circumstances.
Ariz. Admin. Code § R4-30-121